v2h/load_v.py

   1 # load data from file in .v format
   2
   3 class Section:
   4         start = 0 # start address
   5         data = [] # data (array of %02x str)
   6         def __init__(self, start):
   7                 self.start = start
   8                 self.data = []
   9         def len(self):
  10                 return len(self.data)
  11
  12 def v_file_load(fin):
  13         sections = []
  14         sec = None
  15         for line in fin:
  16            line = line.strip()
  17            if len(line) == 0:
  18               continue
  19            if line[0] == '@': # address marker - start of new data chunk
  20               start = int(line[1:], 0x10)
  21               if sec == None:
  22                  sec = Section(start)
  23               else:
  24                  # check for adjacent sections
  25                  if start != sec.start + sec.len():
  26                     sections.append(sec)
  27                     sec = Section(start)
  28                  # else: continue with the same section
  29               continue
  30            # data record
  31            data = line.split()
  32            if len(data) < 1:
  33               print 'error:', line
  34               sys.exit(1)
  35            # data sanity check
  36            for b in data:
  37               v = int(b, 0x10)
  38               if v > 0xff:
  39                  print 'error:', line
  40                  sys.exit(1)
  41            sec.data += data
  42 #           print data
  43 #           print sections[-1].data
  44         if sec != None:
  45            sections.append(sec)
  46         return sections